Don't use Battle UI modification for now if this is big issue for you. I cannot do anything about it, must wait for mod author to make a proper update.
Video tutorial is, but maybe only as example, the topic is posted on WoT forums, if you are in doubts contact with MajorRenegade, she is helpfull person.
v6.6.0 #03 (10-06-2017):
- updated No Rust skins
- added Side Panels by Hakabase
- added Arpeggio of Blue Steel UI Theme Pack
- added Info Panel
- added Historical Naval Ensigns (Flags) in 2k HD
You have no errors in python indeed. I loaded same mods like you and nothing is crashing, it's most likely your PC doing it to you.
Perform typical check on antivirus, firewalls, permissions, update drivers etc. Sometimes applications with overlay can crash you too.
v6.6.0 #02 (09-06-2017):
- akt. ikonek konturów: Hakabase, Aslain
- akt. minimapka by fugetsu
- akt. Okulary przeciwodblaskowe
- akt. Flagi japońskiej i niemieckiej marynarki od MajorRenegade [naprawiono problemy z rozmazanymi flagami]
- akt. mxStat (by qMBQx8GH_real)
- dodano Boczne panele od BADoBEST [na razie niekompatybilne z ikonkami konturów]
- dodano Panel z klasami okrętów i paskami życia
- dodano flagi Alpha-Beta
- dodano Ulepszony chat v1 i v2
- dodano Zmiana dźwięków Stevena Seagala na zwykłe angielskie
- usunięto źle działające skórki okrętów: Aoki Hagane no Arpeggio Skins i Crook
v6.6.0 #02 (09-06-2017):
- updated contour icons: Hakabase, Aslain
- updated minimap by fugetsu
- updated Anti-Glare (Sunglasses)
- updated Japan & German Navy flags by MajorRenegade [fixed blured flags issue]
- updated mxStat (by qMBQx8GH_real)
- added Class Panel with hp bars
- added Alpha-Beta flags
- added Side Panels by BADoBEST [not compatible with contour icons for now]
- added Improved Chat v1 and v2
- added Steven Seagal to Standard English voices
- removed broken ship skins: Aoki Hagane no Arpeggio and Crook's
If you don't finish installation, many mods will fail. You need to find out why is this happenig, I cannot help you too much. Typicaly check user permissions, antivirs. etc.